A network security analysis and monitoring toolkit Linux distribution.
Next Generation Open Source Firewall
Anti Spam SMTP Gateway
free netflow analyzer
blocklists for openbsd,freebsd,linux,iptables,bsd pf,pf,ipfilter
OPTOSS Next Gen Network Management System (NG-NetMS)
Open Source SIEM
User Computer and IP Address Tracking
IOSec Addons are enhancements for web security and crawler detection
Easy to use firewall for linux beginners.